@DoctorBugs

@DoctorBugs

Most recents (9)

"The Evolution of Strangers and Foreigners"

🧵 Today's SFI Seminar by @DoctorBugs (@Smithsonian)

santafe.edu/events/life-an…

cc @templeton_fdn

First, a loop back to his LAST (2020) SFI Seminar on 3D structure of living systems from biofilms to rainforest canopies:

And his #ComplexityPodcast episode on ideas from that talk and this one:
complexity.simplecast.com/episodes/52-Z7…

@DoctorBugs

"People often think of societies as cooperative, but some societies are NOT very cooperative. I prefer to put the focus on them as groups."

"Societies are just one aspect of belonging. There are groups *within* societies & that's what psychologists mostly focus on."

@DoctorBugs

Read 15 tweets

Robert N. Malek

@MalekRobert

https://twitter.com/MalekRobert/status/1512447713815711750

A few words on how this spray is generated and why the #beetle is not harmed in the process:

Hydroquinone and hydrogen peroxide are secreted by specialized glands and stored in a tank. Other glands produce catalyst enzymes such as catalases and peroxidases. 1/7

https://twitter.com/MalekRobert/status/1512447713815711750

When the contents of the two glands are mixed, oxygen forms and in turn reacts with hydroquinone to convert it to benzoquinone. Pressure due to the buildup of oxygen then causes the hot mixture of water and benzoquinone to be expelled. 2/7

The explosion chamber is made of a mixture of chitin, proteins and waxes, which protect the beetle’s soft interior from the chemical mix, the high temperatures and the pressure. To withstand the #explosive force, the blast consists of a series of micro-pulses. 3/7

Read 9 tweets

T&T Field Naturalist

@TTFNC

Happy 130th Birthday to us!

The TTFNC was founded on July 10th 1891 in order to: “...give pleasure to its members by observation of animal, insect and plant life in Trinidad”.

This thread will revisit some key milestones in our long history! 1/n #130yearsofTTFNC

In 1892, the first issue of our peer-reviewed journal was published as an outlet for our members to publish interesting and novel #NaturalHistory observations. It continues to this day as "Living World, the Journal of the TTFNC". ttfnc.org/livingworld/in… 2/n #130yearsofTTFNC

The first issue of our journal included J. E. Tanner's breakthrough discovery that #leafcutter #ants (locally known as #bachacs) cultivate fungus & feed it to their larvae, rather than eating the leaves directly as previously thought. 🐜🌿🍄3/n #130yearsofTTFNC

Read 27 tweets

Domani DevOps

@ProjectDomani

https://twitter.com/ProjectDomani/status/1391506960969871367

#MotherNature

The Emergent Agents from the Cambrian Explosion are NOT Passive

Feedback Loops are a Dominant Part of the Evolution of a Complex Adaptive System

https://twitter.com/ProjectDomani/status/1391506960969871367

The #WolfPack

Agents Search the Local Environment for New Prey

Wolf Pack Cooperation Emerges as an Edge in the Competition to Survive and Reproduce

The Pack (Hyenas) vs The Lion

Read 15 tweets

Bryan Kelly

@BryanKeIIy

@lexfridman

@lexfridman 12:37 This guy has too many brains for a place like Harvard, mentioning God right outta the box.

@lexfridman

@lexfridman 15:10 This guy gets it with the scales of ants, grains, lifespans and gratitude.

@lexfridman

@lexfridman 18:34 What it is, is here. #OumuamuaPropulsion twitter.com/i/events/10845…

Read 58 tweets

À Part

@media_apart

@iscpalyon

👋🏼 - Bonjour à tous !

🧪 - Aujourd’hui, #ÀPart vous emmène à la rencontre d’une nouvelle communauté, celle des #scientifiques.

#communauté #scientifique @iscpalyon @pitrackgirard

🥼 - Comment se caractérise un membre de la communauté #scientifique ? Dans un sens assez large, c’est l’ensemble des chercheurs et autres personnalités dont les travaux ont pour objet les sciences et la recherche scientifique.

👨‍🔬 - Cette communauté, très étendue à travers la #France et le monde, est pourtant à l’écoute d’une institution peu connue hors de cette communauté : l’#Académie des Sciences.

Read 8 tweets

GAVNet

@GAValueNetwork

Daily Bookmarks to GAVNet 11/28/2020 greeneracresvaluenetwork.wordpress.com/2020/11/28/dai…

Meet GPT-3. It Has Learned to Code (and Blog and Argue).

nytimes.com/2020/11/24/sci…

#MachineLearning #ArtificialIntelligence #education

Job guarantees and free money: 'Utopian' ideas tested in Europe as the pandemic gives governments a new role

cnn.com/2020/11/23/eco…

#UniversalBasicIncome #europe #governance #PandemicResponse

Read 8 tweets

Daniel Kronauer

@DanielKronauer

@biorxivpreprint

Scout-initiated group raiding in ants is an incredibly rich collective behavior that can now be studied in the lab. Exciting new @biorxivpreprint from our lab @RockefellerUniv with @VChandra_ & @asafffgal biorxiv.org/content/10.110…. (1/8)

@biorxiv_evobio

Scout-initiated group raids are stereotyped in the sequence of events, but there is interesting variation in the length of some phases. Lots of cool collective decision making and navigation as well. @biorxiv_evobio @biorxiv_neursci @biorxiv_ecology. biorxiv.org/content/10.110… (2/8)

Turns out that group raiding is the evolutionary precursor of army ant mass raiding, one of the most spectacular collective phenomena out there. However, we actually know very little about how collective behavior evolves mechanistically in any animal group. (3/8)

Read 8 tweets

GAVNet

@GAValueNetwork